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Finding the Fourth Proportional to 327,329.88, 490,939.02 and 90,617.10

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Solution

The fourth proportional to 327,329.88, 490,939.02 and 90,617.10 is: 135,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,329.88 : 490,939.02 = 90,617.10 : x
  2. Step 2: Convert to fraction form
    327,329.88/490,939.02 = 90,617.10/x
  3. Step 3: Cross multiply
    327,329.88x = 490,939.02 × 90,617.10
  4. Step 4: Simplify right side
    327,329.88x = 44,487,470,269.24
  5. Step 5: Solve for x
    x = 44,487,470,269.24/327,329.88
  6. Step 6: Final answer
    x = 135,910.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.